He holds a Ph.D. in Development Studies, a Masters in Political Economy from the University of Abuja, and a Bachelor of Arts in Theatre Arts from the University of Jos. He also earned a Certificate from the London School of Economics.

Was appointed Senior Special Assistant (Administration) to the President, Federal Republic of Nigeria, 2010 - 2015, served as Member, Governing Council, Federal University, Gusau, 2015 – 2016 and worked in the public service for over 20 years, holding key positions in Federal Ministries and The Presidency at different times. 

In the private sector, Dr Neliaku has worked as Director Programmes, Institute of Civil Society, Abuja; Founding Vice Chairman/CEO, abc Shelters Ltd (a property development company); Executive Vice Chairman, Rightangle PR; Executive Producer, Rightangle Productions; Convener, Issachar Centre for Research and Development; Member, Governing Board and Executive Secretary, Nigerian Prize for Leadership.

Travelled to over 45 countries as a member of various federal government delegations, participated in more than 55 technical missions on sustainable development, information and communication management, negotiations and diplomacy, cultural relations, public sector administration, infrastructure development, leadership and management development, gender empowerment, youth development, etc. 

Dr. Neliaku has been in public relations practice in the public and private sectors for over 35 years. On the 25th of August 2023, he was elected as the 15th President and Chairman of the Council, Nigerian Institute of Public Relations. He is a Fellow of the Nigerian Institute of Public Relations (fnipr); Fellow, African Public Relations Association (APRA), Fellow; Institute of Chartered Mediators and Conciliators; Fellow, Institute of Management Consultants; Fellow, Association of Nigerian Authors; Fellow, Institute of Entrepreneurs; and Life Member Society for International Development (SID), Italy.  

He is also the author of '7 Conspiracies of Power’, a 662-page authoritative exposé on Nigerian politics, politricks and politicians.